242 MEMOIRS ON THE COLEOPTERA 



genus. A considerable number of new forms have come to light 

 during recent years as follows : 



Carcinops uteana n. sp. Elongate-oval, feebly convex, black, polished, 

 the legs piceous; head evenly, feebly convex, minutely punctulate, the 

 superciliary line inwardly oblique anteriorly; prothorax three-fourths 

 wider than long, the sides feebly converging, feebly arcuate, gradually 

 much more rounding apically; marginal bead thick basally, very fine 

 apically; surface impunctate, having, broadly toward the sides, fine and 

 widely spaced punctures; elytra fully as long as wide or longer, about 

 three-fourths longer than the prothorax, very moderately narrowed 

 apically, the sides very broadly and subevenly arcuate; striae punctate, 

 the two outer rather coarsely impressed, the next two finely, the fifth 

 abbreviated at basal fourth, the sutural at fifth, both being barely 

 impressed series of fine punctures; lateral surface without striae, except 

 a short oblique humeral; pygidium finely, feebly punctate basally, almost 

 smooth and notably convex distally; prosternal striae extending but 

 slightly before the middle, outwardly feebly arcuate, straight basally; 

 mesosternum broadly, evenly sinuate medially at the margin. Length 

 2.2 mm.; width 1.2 mm. Utah (Leeds), Wickham. 



Allied rather closely to the more southern gilensis Lee., but 

 differing in its still more narrowly oval form, more convex pygidium 

 and in some other characters. 



Carcinops nigra n. sp. Much more briefly oblong-oval, moderately 

 convex, shining, black, the legs piceo-rufous; head nearly as in the pre- 

 ceding, except that the superciliary line is finer, scarcely turned inward 

 and obsolescent anteriorly; prothorax very much more abbreviated, 

 distinctly more than twice as wide as long, the minute sparse punctula- 

 tion all but completely obsolete; sides feebly converging and not evi- 

 dently arcuate from the base, gradually becoming rounded from slightly 

 before the middle to the apex, the marginal bead fine and subequal; 

 surface with extremely minute, remotely scattered punctulation broadly 

 toward the sides; elytra not as long as wide, four-fifths longer than the 

 prothorax, rather rapidly narrowed apically, with moderately arcuate 

 sides; two external striae rather coarse, the next two fine and minutely 

 punctulate, the fifth abbreviated in basal two-fifths and the sutural 

 at the middle very fine, both abbreviated apically also; surface with a 

 few small punctures at apex; lateral surface without striae, except an 

 extremely short humeral and oblique humeral at base; prosternal striae 

 parallel and nearly straight, extending only slightly before the middle, 

 the apical lobe unbeaded as usual; mesosternal side-pieces coarsely, the 

 metasternum more finely and sparsely, punctate. Length 1.75 mm.; 

 width i.i mm. Arizona (found sparingly, among a multitude of gilensis, 

 by Tucker, near Tugson). 



This species resembles papagoana Csy., to external view, but has 

 a shorter and much more transverse prothorax and less deeply 

 impressed internal striae of the elytra, all the striae being deeply 



